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mllllllllllfllllllll mm 3% R mgm w NM MW m 16, 1932- c. M. F. FRIDENCALCULATING MACHINE Filed Aug. 2]., 1928 Patented At'lg. 16,

UNITED STATES PATENT OFFICE CARL I. nrmm'l, OI OAKLAND, CALIFORNIA,ASSIGNOB TO MABCHAN'I CALCULAT- ING CHINE COIPANY, OI EMEBYVILLE,CALIFORNIA, A CORPOBATIQH 01' CALIFORNIA Application fled August 21, ms.Serial No. 800,988.

The invention relates to calculating machines of the 'type embo'dying arotatable actuator upon which the values to be calculated are set up,rotation of the actuatorby suitable means, serving to transmit thevalues entered into 'the actuator, indirectly, by means of intermediatewheels, to the figure disc of the counting mechanism which for thepurpose of making direct action of the selected values on theintermediate wheels of the figure discs of hi best value possible, isdisposed in parallel isplaceable relation to the axis of the actuator.

An object of the inventionis to simplify the construction and lessen thecost of manufacture of calculating machines of the rotary actuator type.

Another object of the invention is to provide a rotary actuator of themulti-pin type in which rotation of the actuator serves to move theselected number of pins into coop-' selected for illustration in thedrawing ac:

companying and forming part of the resent specification. In said drawingI ave shown one embodiment of the machine of my invention, but it is tobe understood that I do not limit myself to such form, since theinvention, as set forth in the claims, may be embodied in'a plurality offorms.

Referring to said drawing:

Fig. 1 is a vertical section through a keyboard typeof calculatingmachine embody ing my invention.

Fig. 2 is a section taken on the line 2-2, Figure 1. v

Fig. 3 is an end view of the settable slide.

Fig. 4 is a development of the ordinal. registration pins of theactuating unit.

The present invention relates particularly to the value selectingmechanism, whereby the values to be calculated are introduced into themachine, and whereb they are transmitted to the counting mec anism uponrotation of the actuator. The complete mathe. various elements of themachine are he machine comprises a j counting mechamsm conslstmg of aplurality ofmounted.

numeral wheels 3, each numeral wheel being provided on one side-with atoothed wheel 4, which is in mesh with the intermediate wheel 5. Eachnumeral wheel is also provided with'a detent 6 and with a transfer ortens carrying lever 7, which are'old in the art and require no specificdescription herein. The counting mechanism is mounted'on a transverselymovable'carriage 8 and suitable.

means are provided for moving the carriage transversely in a ste -by-step movement.

Associated-with t e counting mechanism and mounted in the frame of themachine, is an actuator having a reversible cycle of operation, whichserves, upon rotation in either direction, to transmit the 7 valuesentered therein to'the numeral wheels of the counting mechanism. Theactuator comprises a suitable means, such .as a hand-crank, for

rotating it in either direction.

Each actuating unit comprises a wheel or disc 12, upon which arearranged nine ordinal registration pins 13, two, transfer pins or tenscarrying pins 14, and a transfer lever restoring cam 15. The transferpins 14 are of a construction heretofore described in one of myco-pending applications and their specific construction will not bedescribed herein, it bein suflicient to state that these pins are rockabe transversely by the transfer lever 7, and serve to advance I theintermediate wheels of the next highest order one step.

The nine ordinal registration pins 13 are disposed radially of the disc12 and at their outer ends extend through slots in a periph eral flange16, the ends of the pins projecting beyond the periphery of the disc.The disc is provided with a hub 17, having a plurality of radiallyextending slots therein, and the inner ends of the pins are seated inthese slots. Longitudinal movement of the pins with respect to the discis prevented by a projection 18 on the pins, engaging in an aperture inthe disc. The pins 13 are rockable sideways with respect to the disc andthe projecting ends of the pins are normally held in a plane spaced fromthe plane of the associated intermediate wheel 5 by a spring 19interposed between the pin and the disc. If, during rotation of thedisc, the pins 13 remained in their normal position, as shown in Figure2, the projecting ends of the pins would not contact with the teeth ofthe intermediate wheel 5. To accomplish movement of the intermediatewheel, on rotation of the disc, means are provided for moving a selectednumber of pins sidewise, so that the transversely moved ins lie in theplane of the intermediate w eel 5, as the pins move through contact withthe intermediate wheel, thereby causing movement of the intermediatewheel a number of steps corresponding to the selected number of pinsmoved transversely.

To accomplish the transverse rocking of the selected number of pins,each pin is provided on its side, remote from the spring 19,

with a pad or 'projection 21, the projections on the successive pinsterminating, preferably at their inner ends, at successively differentdistances from the axis of the disc. It will be noted in Figures 1 and 4that the pro- 'ection 21 on the pin 13 is the longer, the projection onthe next pin 13 is slightly shorter and the projections on thesuccessive pins are successively shorter. These projections, beginningat different distances from the axis of the disc, are employed to causea transverse rocking movement, on rotation of the disc, of a selectednumber of pins, the pins rocked transversely having their outer endsmoved into the plane of the associated intermediate wheel 5, so thatthey contact with and move the intermediate wheel.

Associated with each disc, and mounted on the hub 17 thereof, and on afixed rod 23, is a slide 24 which is provided on its inner end adjacentthe axis of the disc, with a curved laterally projecting cam 26. Theslide 24 is movable to selected position to bring the cam 26 into thepath of a selected number of projections 21. When the slide 24 is inzero position, the cam 26 lies within the circle of the inner end of thelongest projection 21, so that on rotation of the disc, none of the pins13 will be rocked transversely. When the cam 26 is moved into adjustedposition more remote from the axis of the disc 12, a selected number ofprojections 21 will engage the cam and cause transverse rocking of thecorresponding number of pins.

Means are provided for moving the cam 26 to adjusted position and in thepresent ifstance this means includes a plurality of numeral ke s 28,having values from zero to nine, inc usive, the key at the front end ofthe row preferably having the zero value and the key at the rear end ofthe row preferably having the nine value. Each key is provided with akey stem 29 which cooperates with a setting lever so that on depressionof a selected key, the slide 24 is moved to position the cam 26 so thatthe number of pins 13 corresponding to the value of the depressed keywill be rocked sidewise into the plane of the associatedintermediatewheel 5, on rotation of the disc. ..,In the present construction, thesetting lever comprises a lever system including the lever 31,associated with some of the key stems, and connected intermediate itsends to the lever 32, associated with other of the key stems, the leversystem being such that the lever 32 is rocked a distance correspondingto the value of the depressed key. Each key stem is also provided with aspring 33 for returnin it to elevated position when it is released y theslide 34, each ke stem being provided with a projection 35 a apted to engage under the slide 34 when the key is depressed. These features arefully disclosed in my prior application and require no specificdescription herein. At its rear end, the lever 32 is connected to thebell crank lever 37, which is normally held retracted by the spring 38and which is provided at its upper end with a slot 39, in which isdisposed a pin 41, secured to the slide 24.

The cam 26 is disposed between the axis of the disc and the intermediatewheel 5, and, on rotation of the disc, the projection 21 on the pins 13,depending upon the position of the cam 26, ride over the cam, causingthe corresponding pins to be rocked transversel to bring their outerends into the plane 0 the intermediate wheel 5, and thereby causing thepins to contact with and move the intermediate wheel, the wheel beingmoved a number of steps equal to the number of pins which contacttherewith.

I claim:

1. In a calculating machine, a re 'stering element, actuating mechanismthere or comprising a series of sprin pressed actuating elements eachadapted w en operatively positioned to drive said registering elementthrough a single step, and selectin mechanismcomprising a memberdifferentially settable to a series of operative positions along a linenormal to a line tangent to the said registering element at the drivingoint to efiect operative positioning of a num r of said actuatingelements corresponding to the difl'erential setting of said member.

2. In a calculating machine, a rotatable registering element, actuatingmechanism thereforcomprising a rotatable disk, a series of actuatingpins arranged radially thereon and rockable transversely to thedirection of rotation, springs individual to said pins normally holdingthem rocked into inoperative position, abutments of different lengths onsaid pins adapted to be engaged to rooksaid pins to operative position,selecting mechanism comprising a cam of a width equal to the differencein length of said rojections, and a series of keys for moving sald camto a series of operative positions along a'line normal to a linetangentto said registering element at the driving point to effect operativepositioning upon'rotation of the actuating mechanism of a number of pinscorresponding to the value of the key.

In testimony whereof, I have hereunto set my hand.

' CARL M. F. FRIDEN.

